Planning application
39 Wilton Crescent London SW1X 8RX
Works: Extension Loft or dormer Windows or glazing
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Erection of rooftop plant enclosure behind dummy mansard including new terrace with new stone paving; access stair with glazed access hatch; two flush walk-on rooflights; extension of mansard to front elevation to form parapet and conceal terrace; balustrade to rear elevation; raising of party wall to front of No. 40; replacement of all existing AV and satellite antennas; new security CCTV camera overlooking the access hatch.
As published by the council, reference 25/05991/FULL
Application record
- Reference
- 25/05991/FULL
- Type
- Full Planning Permission Application
- Status
- Decided
- Decision
- Granted As published: Application Permitted
- Received
- 22 Aug 2025
- Validated
- 8 Sep 2025
- Decided
- 23 Oct 2025
- Ward
- Knightsbridge & Belgravia
- Decision by
- Delegated Decision
- Postcode
- SW1X 8RX
Site history
Applications at this address on the Westminster register
This site has had 8 applications since 2025: 6 approved, 0 refused.
-
25/09301/LBC Granted
39 Wilton Crescent London SW1X 8RX
Erection of closet wing from lower ground to third floor; demolition and reconstruction of existing rear two storey extension at lower ground and ground floor level; erection of balcony and french doors at rear ground floor level; alterations at roof level in association with its use as a terrace; installation of plant equipment within enclosures at roof level and to rear; extension of lift to fourth floor; excavation of basement under rear courtyard, infill courtyard extension with terrace in association with use of building as single dwelling.
-
25/09300/FULL Granted
39 Wilton Crescent London SW1X 8RX
Erection of closet wing from lower ground to third floor; demolition and reconstruction of existing rear two storey extension at lower ground and ground floor level; erection of balcony and french doors at rear ground floor level; alterations at roof level in association with its use as a terrace; installation of plant equipment within enclosures at roof level and to rear; extension of lift to fourth floor; excavation of basement under rear courtyard, infill courtyard extension with terrace in association with use of building as single dwelling.
-
25/05992/LBC Granted
39 Wilton Crescent London SW1X 8RX
Erection of rooftop plant enclosure behind dummy mansard including new terrace with new stone paving; access stair with glazed access hatch; two flush walk-on rooflights; extension of mansard to front elevation to form parapet and conceal terrace; balustrade to rear elevation; raising of party wall to front of No. 40; replacement of all existing AV and satellite antennas; new security CCTV camera overlooking the access hatch.
-
25/05985/FULL Withdrawn
39 Wilton Crescent London SW1X 8RX
Erection of closet wing from lower ground to third floor; demolition and reconstruction of existing rear two storey extension at lower ground and ground floor level; erection of balcony and French doors at rear ground floor level; alterations at roof level in association with its use as a terrace; installation of plant equipment within an enclosure at roof level and an MVHR unit in the rear courtyard; extension of existing lift to fourth floor; and excavation of basement under rear courtyard, infill courtyard extensionand works to front and rear elevations in association with use of building as single dwelling. (Linked with 25/05986/LBC)
-
25/05986/LBC Withdrawn
39 Wilton Crescent London SW1X 8RX
Erection of closet wing from lower ground to third floor; demolition and reconstruction of existing rear two storey extension at lower ground and ground floor level; erection of balcony and French doors at rear ground floor level; alterations at roof level in association with its use as a terrace; installation of plant equipment within an enclosure at roof level and an MVHR unit in the rear courtyard; extension of existing lift to fourth floor; and excavation of basement under rear courtyard, infill courtyard extension and works to front and rear elevations in association with use of building as single dwelling. (Linked with 25/05985/FULL)
-
25/05984/FULL Granted
39 Wilton Crescent London SW1X 8RX
Variation of Condition 1 of planning permission dated 23 February 2016 (RN: 15/08955/FULL) for the: 'Erection of closet wing from lower ground to third floor to accommodate lift. Demolition and reconstruction of existing rear two storey extension at lower ground and ground floor level. Erection of balcony and French doors at rear ground floor level. Alterations at roof level in association with its use as a terrace. Installation of plant equipment within an enclosure at roof level. Excavation of basement under rear courtyard'. Namely, retention of existing lift shaft, modifications to fenestration arrangement on rear, increase in height of two storey rear extension.
-
25/05926/LBC Granted
39 Wilton Crescent London SW1X 8RX
Erection of closet wing from lower-ground to third floor, reconstruction of existing rear two-storey extension at lower-ground and ground level, erection of balcony and French doors at rear ground level, basement extension, levelling of ground floor and raising of rear roof level, replacement of lower-ground concrete slab and associated damp proofing, alterations to services throughout, internal alterations associated with lift and associated refurbishment alterations.
Timeline
Dates from the published record
-
22 Aug 2025
Received by Westminster
-
8 Sep 2025
Validated
Checked as complete and ready for consideration.
-
23 Oct 2025
Decision issued: Application Permitted
-
21 Jul 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Montagu Evans LLP Agent, registered in London
Active · incorporated 2005 · London
1,108 applications on PlanIndex · across 122 councils · 98% granted
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See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
17 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
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Open the documentsWhat this grant of permission means
Westminster granted permission on 23 October 2025, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
About full applications
A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
39 Wilton Crescent London SW1X 8RX
Erection of closet wing from lower ground to third floor; demolition and reconstruction of existing rear two storey extension at lower ground and ground floor level; erection of balcony and french doors at rear ground floor level; alterations at roof level in association with its use as a terrace; installation of plant equipment within enclosures at roof level and to rear; extension of lift to fourth floor; excavation of basement under rear courtyard, infill courtyard extension with terrace in association with use of building as single dwelling.
Granted Heritage and listed buildings Extension Demolition +1 25 docsDomestic -
39 Wilton Crescent London SW1X 8RX
Erection of closet wing from lower ground to third floor; demolition and reconstruction of existing rear two storey extension at lower ground and ground floor level; erection of balcony and French doors at rear ground floor level; alterations at roof level in association with its use as a terrace; installation of plant equipment within an enclosure at roof level and an MVHR unit in the rear courtyard; extension of existing lift to fourth floor; and excavation of basement under rear courtyard, infill courtyard extensionand works to front and rear elevations in association with use of building as single dwelling. (Linked with 25/05986/LBC)
Withdrawn Full applications Extension Demolition +1 36 docsDomestic -
39 Wilton Crescent London SW1X 8RX
Erection of closet wing from lower ground to third floor; demolition and reconstruction of existing rear two storey extension at lower ground and ground floor level; erection of balcony and French doors at rear ground floor level; alterations at roof level in association with its use as a terrace; installation of plant equipment within an enclosure at roof level and an MVHR unit in the rear courtyard; extension of existing lift to fourth floor; and excavation of basement under rear courtyard, infill courtyard extension and works to front and rear elevations in association with use of building as single dwelling. (Linked with 25/05985/FULL)
Withdrawn Heritage and listed buildings Extension Demolition +1 29 docsDomestic -
39 Wilton Crescent London SW1X 8RX
Erection of rooftop plant enclosure behind dummy mansard including new terrace with new stone paving; access stair with glazed access hatch; two flush walk-on rooflights; extension of mansard to front elevation to form parapet and conceal terrace; balustrade to rear elevation; raising of party wall to front of No. 40; replacement of all existing AV and satellite antennas; new security CCTV camera overlooking the access hatch.
Granted Heritage and listed buildings Extension Loft or dormer +1 16 docs -
39 Wilton Crescent London SW1X 8RX
Variation of Condition 1 of planning permission dated 23 February 2016 (RN: 15/08955/FULL) for the: 'Erection of closet wing from lower ground to third floor to accommodate lift. Demolition and reconstruction of existing rear two storey extension at lower ground and ground floor level. Erection of balcony and French doors at rear ground floor level. Alterations at roof level in association with its use as a terrace. Installation of plant equipment within an enclosure at roof level. Excavation of basement under rear courtyard'. Namely, retention of existing lift shaft, modifications to fenestration arrangement on rear, increase in height of two storey rear extension.
Granted Full applications Extension Demolition +1 37 docs -
39 Wilton Crescent London SW1X 8RX
Erection of closet wing from lower-ground to third floor, reconstruction of existing rear two-storey extension at lower-ground and ground level, erection of balcony and French doors at rear ground level, basement extension, levelling of ground floor and raising of rear roof level, replacement of lower-ground concrete slab and associated damp proofing, alterations to services throughout, internal alterations associated with lift and associated refurbishment alterations.
Granted Heritage and listed buildings Extension Windows or glazing 33 docs
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